South African props Johannes Jonker and Juan Schoeman are amongst 4 gamers leaving Tub following the conclusion of the 2023-24 season.
Schoeman, 32, made 62 appearances for the membership – together with 22 this marketing campaign – after becoming a member of from Sharks in 2020.
Jonker, 29, signed the next 12 months and featured 27 instances.
Prop Kieran Verden and centre Max Wright may even depart.
Wright, 27, joined Tub in 2017 and made 40 appearances since, whereas Verden, 25, has been on the Rec for eight years having come by means of the academy.
Nevertheless each gamers have solely featured within the Premiership Rugby Cup within the final two seasons.
Tub finished second in the final Premiership table this season, behind leaders Northampton on factors distinction, and can tackle Sale within the play-off semi-finals at house on Saturday, 1 June.